773-019

This high-quality pressure switch is a critical safety component designed for residential HVAC systems, specifically gas furnaces and air handlers. Rated at 0.65" WC (Water Column), this air proving switch monitors the pressure levels within the combustion chamber to ensure the draft inducer motor is operating correctly. By verifying proper airflow before allowing ignition, it protects the system from venting failures and hazardous conditions. If your furnace is failing to ignite or shuts off prematurely, this replacement pressure switch is a reliable solution to restore safe and efficient heating performance.
Type: Air Pressure Switch
Size: Standard replacement component
Application: Used in forced-air gas furnaces and heating systems to monitor draft pressure and ensure proper venting before ignition.
Specifications: Pressure Rating: 0.65" WC (Water Column); Component Type: Air Proving Switch; Function: Normally Open, closes on pressure rise.